<!DOCTYPE html>
Tests repaint of composited table cells when their containers change background.
Passes if there are two green table cells.
<table>
  <tr id="row1" style="backface-visibility: hidden; background-color: green">
    <td style="width: 100px; height: 50px"></td>
  </tr>
  <tr id="row2" style="background-color: green">
    <td style="width: 100px; height: 50px"></td>
  </tr>
</table>
